Commencements / complete inventory / Ranked / relevance Index refreshed nightly · 28 Jul 2026

Complete commencement inventory

Every commencement project, and every notice underneath it

The full retained public-safe commencement history, grouped by planning authority and planning reference. Switch to Notices to inspect each source identity and phase separately.

138,265 Projects grouped by planning ref
153,613 Notice identities individual source notices
10,187 Multi-notice projects phased or revised starts
42,039 Named-builder notices builder stated on the notice
11,794 In this window 12 months · 12,917 notices
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Showing 426–450 of 517 notices

Notice identityWorks statedPlanning refScaleCommenced
CN0133491MOBCMS owner-supplied export · Mayo County CouncilBuilder not named New extension to existing dwelling house and all ancillary works“CONSTRUCTION OF NEW EXTENSION TO EXISTING DWELLING HOUSE AND ALL ANCILLARY WORKS INCLUDING UPGRADE TO PERCULATION AND SEPTIC TANK” 20/452Planning ref indexed 1 unit · 47.5 m² 26 Sep 2025
CN0134042MOBCMS owner-supplied export · Mayo County CouncilBuilder not named A new single storey dwelling house — Church Park“Construction of a new single storey dwelling house.” P24/60293Planning ref indexed 1 unit · 125 m² 25 Sep 2025
SN0013111MOBCMS open-data feed · Mayo County CouncilBuilder not named A solid digestate storage and a nutrient recovery building with“A solid digestate storage and a nutrient recovery building with mezzanine.” 2460419Planning ref indexed 934.1 m² 24 Sep 2025
CN0133511MOBCMS owner-supplied export · Mayo County CouncilBuilder not named A new single storey detached domestic garage — Ballina“Construction of a new single storey detached domestic garage” P25/60107Planning ref indexed 45 m² 23 Sep 2025
CN0133670MOBCMS owner-supplied export · Mayo County CouncilBuilder not named Construct dwelling house and installation of eff — Graughill“Construct dwelling house and installation of eff. treatment system including site development works as per PP File 25/60283 + 24/60238.” 2560283Planning ref indexed 1 unit · 309.8 m² 22 Sep 2025
CN0133679MOBCMS open-data feed · Mayo County CouncilBuilder not named Dwelling House, on-site effluent treatment system together with“Construction of Dwelling House, on-site effluent treatment system together with ancillary site development works.” P22/361Planning ref indexed 1 unit · 243.7 m² 22 Sep 2025
CN0133917MOBCMS owner-supplied export · Mayo County CouncilBuilder not named A new detached two storey dwelling house — Ballinahaglish“Construction of a new detached two storey dwelling house.” P25/60107Planning ref indexed 1 unit · 247.9 m² 22 Sep 2025
CN0133536MOBCMS owner-supplied export · Mayo County CouncilBuilder not named Renovating and extending existing derelict cottage, replacing“Renovating and extending existing derelict cottage, replacing existing septic tank with new wastewater treatment system, constructing new vehicle entrance and all associated site works at Mountbrown, Westport, Co. Mayo.” 25104Planning ref indexed 1 unit · 356.3 m² 22 Sep 2025
CN0133506MOBCMS owner-supplied export · Mayo County CouncilBuilder not named Demolition to top of foundation and reconstruction of“Demolition to top of foundation and reconstruction of semidetached dwelling house.” P24/60638Planning ref indexed 1 unit · 223.8 m² 22 Sep 2025
CN0133198MOBCMS open-data feed · Mayo County CouncilBuilder not named To extend and make alterations to existing supermarket to“To extend and make alterations to existing supermarket to include the adjacent property known as JJ Glynn grocer and ironmonger” which is a protected structure. The development will consist of creating new toilet facilities, creating additional shop floor space, an extension to first floor warehouse, a new 2 bedroom apartment at first floor level over “JJ Glynn grocer and ironmonger” and alterations, removals and repairs to the adjacent existing shop site known as “JJ Glynn grocer and ironmonger” To include all necessary alterations to mechanical and electrical installations and to build a steel framed canopy over the main delivery area to the rear with provision for roof mounted plant equipment. To include all associated and ancillary site works” 24/60002Planning ref indexed 453 m² 17 Sep 2025
CN0133516MOBCMS owner-supplied export · Mayo County CouncilBuilder not named Construction Dwelling House and all associated Services“Construction Dwelling House and all associated Services” 21/723Planning ref indexed 1 unit · 190 m² 15 Sep 2025
CN0133483MOBCMS open-data feed · Mayo County CouncilBuilder not named BA2071 - Construct an extension and carry out alterations to“BA2071 - Construct an extension and carry out alterations to existing dwelling house & all associated site works.” 2460548Planning ref indexed 1 unit · 95 m² 12 Sep 2025
SN0013032MOBCMS open-data feed · Mayo County CouncilBuilder not named Change of use to existing ground floor office unit to new Day“Change of use to existing ground floor office unit to new Day Services use together with minor internal alterations” P25/60153Planning ref indexed 418.4 m² 12 Sep 2025
CN0132844MOBCMS owner-supplied export · Mayo County CouncilBuilder not named Domestic shed and all ancillary works — Ballina“Construction of domestic shed and all ancillary works” 2560137Planning ref indexed 1 unit · 44 m² 10 Sep 2025
CN0132985MOBCMS open-data feed · Mayo County CouncilBuilder not named Extension to house at Killeen, Castlehill, Ballina, Co“Extension to house at Killeen, Castlehill, Ballina, Co. Mayo.” 2560314Planning ref indexed 1 unit · 104 m² 10 Sep 2025
CN0133125MOBCMS owner-supplied export · Mayo County CouncilBuilder not named A dwelling house at Dereenmanus — Castlebar“Construction of a dwelling house at Dereenmanus” 21664Planning ref indexed 1 unit · 145 m² 10 Sep 2025
CN0132984MOBCMS owner-supplied export · Mayo County CouncilBuilder not named Domestic garage at Dooniver, Achill, Co Mayo“Construction of domestic garage at Dooniver, Achill, Co Mayo” 25/60335Planning ref indexed 60 m² 09 Sep 2025
CN0132723MOBCMS owner-supplied export · Mayo County CouncilBuilder not named New dwelling house, septic tank and percolation area at“Construction of new dwelling house, septic tank and percolation area at Treanacally or Hagfield, Charlestown, Co. Mayo.” 24540Planning ref indexed 1 unit · 188 m² 08 Sep 2025
CN0132698MOBCMS owner-supplied export · Mayo County CouncilBuilder not named Extension to existing dwelling house at Wherrew Knockfree“Extension to existing dwelling house at Wherrew Knockfree, Cloghans, Ballina, Co. Mayo.” 2460493Planning ref indexed 1 unit · 133.5 m² 08 Sep 2025
CN0132695MOBCMS owner-supplied export · Mayo County CouncilBuilder not named A Dwelling House, a percolation area, and all ancillary site“the construction of a Dwelling House, a percolation area, and all ancillary site works” 22377Planning ref indexed 1 unit · 123 m² 08 Sep 2025
CN0132725MOBCMS owner-supplied export · Mayo County CouncilBuilder not named New domestic garage at Treanacally or Hagfield, Charlestown, Co“Construction of new domestic garage at Treanacally or Hagfield, Charlestown, Co. Mayo.” 24540Planning ref indexed 40 m² 08 Sep 2025
CN0132694MOBCMS owner-supplied export · Mayo County CouncilBuilder not named A dwelling house, wastewater treatment syystem and all“Construction of a dwelling house, wastewater treatment syystem and all associated works.” 2460565Planning ref indexed 1 unit · 220 m² 05 Sep 2025
CN0132855MOBCMS owner-supplied export · Mayo County CouncilBuilder not named A new house at Bofield, Bonniconlon, Ballina, Co“Construction of a new house at Bofield, Bonniconlon, Ballina, Co. Mayo” 2460666Planning ref indexed 1 unit · 279 m² 04 Sep 2025
CN0132825MOBCMS owner-supplied export · Mayo County CouncilBuilder not named To construct 1no — Claremorris“to construct 1no. 2 storey block built dwelling house at Gorlough, Claremorris, Co Mayo” 25182Planning ref indexed 1 unit · 167.3 m² 04 Sep 2025
CN0132826MOBCMS owner-supplied export · Mayo County CouncilBuilder not named An extension to front of existing dwelling house, renovation of“Construction of an extension to front of existing dwelling house, renovation of existing dwelling with waste water treatment system, percolation area and all associated site works.” P23/350Planning ref indexed 1 unit · 112.7 m² 04 Sep 2025

Counting and privacy. A notice identity is one public source-family/reference pair. Projects group only where canonical planning authority and planning reference match. Highest notice-stated units and floor area are shown; phases are never summed. Personal names, contact details, Eircodes and raw private addresses remain outside this public projection.